There are total 13 hours or 780 minutes from 7am to 8pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 9AM to 3PM | 7AM to 11PM | 4AM to 12AM |
| 10PM to 8AM | 4AM to 8AM | 5AM to 10AM |
| 5AM to 5PM | 4PM to 3PM | 12PM to 1AM |
| 2AM to 10PM | 5AM to 1PM | 12AM to 8AM |
| 8PM to 6AM | 7PM to 4PM | 4PM to 9AM |
| 3AM to 12AM | 7AM to 1AM | 8PM to 1AM |
